[GHC] #14875: -ddump-splices pretty-printing oddities with case statements

GHC ghc-devs at haskell.org
Tue Apr 17 15:31:16 UTC 2018


#14875: -ddump-splices pretty-printing oddities with case statements
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        Reporter:  RyanGlScott       |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Debugging         |  Unknown/Multiple
  information is incorrect           |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by RyanGlScott):

 Indeed. As currently designed, however, `TyPrec` doesn't fit neatly into
 this `PprPrec` paradigm, since the `Eq`/`Ord` instances for `TyPrec` treat
 `FunPrec` and `TyOpPrec` as having the same precedence (but they still
 need to be separate constructors, so sayeth
 [http://git.haskell.org/ghc.git/blob/cab3e6bfa8486c6c8eecac269c54d662f1371a0c:/compiler/basicTypes/BasicTypes.hs#l746
 this note]). But in any case, I don't think I need to touch anything
 `Type`-related in this patch to begin with.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14875#comment:4>
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